BH3810 Rohm, BH3810 Datasheet

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BH3810

Manufacturer Part Number
BH3810
Description
Vocal fader IC with input selector
Manufacturer
Rohm
Datasheet

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The BH3810FS is a vocal fader IC that is serial control compatible. It has mode switching that also includes a voice
multiplexing mode, a five-input selector, a gain selector and other such features, which can all be controlled serially.
Eight open-collector terminals and two tri-state terminals are provided on the chip to facilitate control by other ICs.
Component stereo systems, CD radio cassette players, TVs and car stereos.
1) Built-in low-pass filter can perform vocal fader func-
2) Serial control can be used to switch between vocal
3) Built-in gain selector allows selection of gain from
Power supply voltage
Applications
Features
Absolute maximum ratings (Ta = 25°C)
Applied voltages
Power dissipation
Operating temperature
Storage temperature
Maximum open collector voltage
Recommended operating conditions (Ta = 25°C)
Vocal fader IC with input selector
BH3810FS
Reduced by 8.5mW for each increase in Ta of 1 C over 25 C ,
Multimedia ICs
when mounted on a 50mm
tion (erasing of vocals from commercially available
music software) using just one chip.
fader, through, multiplex, and mute modes.
6dB to 20dB in 2dB steps.
Parameter
Parameter
50mm
Symbol
V
V
1.6mm board.
DD
EE
Symbol
Topr
Tstg
V
V
V
Pd
DD
EE
OP
– 4.3 ~ – 3.0
4.0 ~ 5.3
Limits
– 40 ~ + 85
– 55 ~ + 125
– 4.5
+ 5.5
Limits
850
14
4) Five-channel input selector.
5) Mic. mixing amplifier with mute function. Key con-
6) SSOP-A32 pin package.
troller input also provided.
Unit
V
V
Unit
mW
V
V
C
C
1

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BH3810 Summary of contents

Page 1

... Vocal fader IC with input selector BH3810FS The BH3810FS is a vocal fader IC that is serial control compatible. It has mode switching that also includes a voice multiplexing mode, a five-input selector, a gain selector and other such features, which can all be controlled serially. Eight open-collector terminals and two tri-state terminals are provided on the chip to facilitate control by other ICs. ...

Page 2

... Multimedia ICs • Block diagram 2 BH3810FS ...

Page 3

... OH V 4.5 4.85 — SOH V — 0.05 0.5 SOL I — 0 — 0.2 10 SCK BH3810FS = 5V – 4V 14dB, f =1kHz, EE Unit Conditions mA Through mode V current DD mA Through mode V current EE mA Through mode D9 to D16 data1 mA Through mode D9 to D16 data1 V THD = 1%, through mode rms dB Through mode ...

Page 4

... Multimedia ICs • Measurement circuit 4 Fig. 1 BH3810FS CLOCK LATCH DATA ...

Page 5

... Current sink OFF Current sink ON PORT10 (15pin) D17 D18 0 0 LOW 0 1 OPEN 1 0 OPEN D17, D18 BH3810FS 15pin 16pin Mic. Tri-state Tri-state mute port port 2bit 2bit D9 PORT 8 (17pin) Mode LSB D23 Chip select 1bit 2bit ...

Page 6

... LOUT ROUT MUTE MUTE VOCALFADE BH3810FS TK Mode MUTE Mute VOCALFADE Vocal fader L L channel L Through Key controller Key controller, R channel L Key controller, L channel VOCALFADE Key controller, vocal fader ...

Page 7

... DGND changes, the values above will change tsu th tw (DATA) 90% D23 10% Fig and V = – 4V Symbol Min. Typ. V 4.0 5 2.0 2 – 0 2.0 — tw (DATA) 4.0 — tw (LATCH) 2.0 — tsu 1.0 — th 1.0 — ts 1.0 — BH3810FS ts tw (LATCH) 90% 10% Max. Unit 6.0 V 3.0 V 1.0 V — s — s — s — s — s — ...

Page 8

... Multimedia ICs • Application circuit 8 Fig. 4 BH3810FS + ...

Page 9

... If the signals are not being received very well, connect a capacitor of about 100pF between the SI terminal (pin 13), and the DGND terminal (pin 12). • External dimensions (Units: mm) 13.6 0 0.8 0.36 0.1 SSOP-A32 f: frequency (dB) C: external capacitor 2 R: 20k (design value) 0.3Min. 0.15 BH3810FS resistor (design value) and this capacitor set 9 ...

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